Apr. x-Sept. 15, 1921 
Index 
879 
Page 
Carrero, J. O., and Gile, P. L. (paper): Assim¬ 
ilation of Nitrogen, Phosphorus, and 
Potassium by Cora When Nutrient Salts 
Are Confined to Different Roots. 545-573 
Casein, milk, in ration for pigs. 281-341 
Cash, Lillian C., and Rand, Frederick V. 
(paper): Stewart’s Disease of Cora. 263-264 
Castor bean. See Ricinus communis. 
Catalese, Hydrogen-Ion Concentration, and 
Growth in the Potato Wart Disease 
(paper). 589-592 
Cattle, sucking louse. 797-801 
Celery— 
Ieafspot disease. 185-188 
seed, treatment for control of Scptoria 
Wight. 369-372 
See A pium gravcolens. 
Cephalothecium sp., isolated from potatoes... 828 
Chactomium spp., isolated from potatoes. 828 
Chemical studies of silage. 767-789 
Chenopodium— 
effect on efficacy of carbon tetrachlorid as 
an althelminitc. X 6 7 
efficacy as an anthelmintic. 169-170 
Chlorid— 
potassium, effect on growth of storage-rot 
fungi..-. i 9 o 
sodium— 
effect of leaching soils. 268-271 
in ration for pigs. 280-341 
Chloris gayayna, indeterminate stolon. 178 
Chloroform— 
effect of carbon tetrachlorid on boiling 
P° mt ;. 542-544 
efficacy as an althelmintic. x68-i 70 
Chlorosis of Conifers Corrected by Spraying 
with Ferrous Sulphate, A (paper). 153-171 
Chrysomya macellaria, dispersion by flight. 733-766 
Chrysophlyctis endobiotica, cause of potato 
wart disease. 589-593 
Citrate— 
calcium, crystals in condensed milk. 791 
ferric, in ration for pigs. 280-341 
sodium, in ration for pigs. 280-341 
Citric acid. See Acid, citric. 
Ciiromyccs glaber, production of citric acid... 333 
Citrus — 
aurantium, effect of temperature on suscep¬ 
tibility to CladosPorium citri . 243-353 
grandis, susceptibility to Cladosporium 
citri . 344 
limonia, susceptibility to Cladosporium 
citri . 344 
nobilis var. unskiu, susceptibility to Clado¬ 
sporium citri . 344 
sinensis, susceptibility to Cladosporium 
citri . 244 
Citrus scab, temperature relations. 243-253 
C ladosporiu m — 
citri, temperature relations. 243-253 
kerbarum, difference from C. citri . 344 
*p., isolated from potatoes. 828 
Climate, relation to potato leafroll. 75-76 
Collar-Rot of Tomato (paper). 179-184 
Page 
Colletotrichum — 
lindemuthianum, effect on host tissue. 613 
solanicolum, isolated from potatoes. 828-848 
Colon-aerogenes organisms in silage. 770 
Coniophora ccrcbellc, effect of hydrogen-ion 
concentration on growth. 303 
Constant-Temperature Bath for Heating 
Blood Serum, A. 541-544 
Copidosoma sp., parasite of Rccurvnria mil - 
l *ri . 138 
Copper sulphate, effect on mold infestation 
of wheat. 106-119 
Cork formation in sweet potato. 637-647 
Corn— 
assimilation of nutrient salts. 545-573 
germ in ration for pigs. 281-341 
siIaee .-75-737 
Stewart’s disease. 26^-264 
See Zea mays and Zea mays indentala. 
Correlation and Growth in the Branches of 
Young Pear Trees (paper). 849-876 
Corsican pine. See Pinus laricio corsicana. 
Corticium vagnrn — 
isolated from potatoes. 828-848 
temperature relations. 459-482 
Cotton Rootrot in the San Antonio Rotations 
(P a P c r). 117-115 
Cotton- 
host of Bacterium solanacearum . 062 
variations. 337-343 
Cows, body temperature. x _ 3 g 
Crab grass. See Synthcrisma sanguinalis. 
Creatiuin in urine, effect of cunirbita seeds. 524-528 
Crowngall. Sec Bacterium tumefaciens. 
Curcurbita — 
maxima seeds, effects on animal metab- 
olisra . 5 * 3-539 
moschata seeds, effects on animal metab- 
olism .. 
pepo seeds, effects on animal metabolism. 533-539 
Cucurbita seeds, effects on animal metab- 
olism . .•••; .. 573-539 
Culm formation in Bromus inermis . 803-816 
Cunningham, C. C. (paper): Study of the 
Relation of the Length of Kernel to the 
Yield of Cora (Zea mays indeutata). 437-438 
Cynodon dactylon, indeterminate stolon. 178 
Cyphomandra bctacca, host of Septoria lyco- 
fiersici . S04 
Date palm. Sec Phoenix dactylifera. 
Date-palm scale. See Phoenicococcus mar- 
latti. 
Datura stramonium, host of Bacterium sola¬ 
nacearum . f 
Day, effect of length on seedlings of alfalfa. 599-608 
Dendroctonus monticolac, parasitic on moun¬ 
tain pine. Ia7 
Determinate rhizome in timothy. I?7 
Determinate stolon in timothy. I77 
Dioxid, carbon, production by— 
farm animals.351-36* 
Rhizopus tritici . . % .637-635 
Dipiodia tubcricola — 
cause of potato rot. *11-226 
glucose as a source of carbon. 189-aio 
